3(2H)-Pyridazinone,4,5-dihydro-6-[2-(4-methoxyphenyl)-1H-benzimidazol-6-yl]-5-methyl-
- 中文别名：匹莫苯
- 中文释义：匹莫苯;6-[2-(4-甲氧基苯基)-1H-苯并咪唑-5-基]-5-甲基-4,5-二氢-3(2H)-哒嗪酮;4,5-二氢-5-甲基-6-[2-(4-甲氧基苯基)-1H-苯并咪唑-5-基]-3(2H)一哒嗪酮
- 英文别名：pimobendan;
4,5-Dihydro-6-[2-(4-methoxyphenyl)-1H-benzimidazol-5-yl]-5-methyl-3(2H)-pyridazinone;
rac PiMobendan;
Pimobendane;
UD-CG 115;
VetMedin;
(RS)-6-[2-(4-methoxyphenyl)-1H-benzimidazol-5-yl]-5-methyl-4,5-dihydropyridazin-3(2H)-one;
Pimobendanum;
Acardi;
dl-Pimobendan;
2-(4-methoxy-phenyl)-5-(5-methyl-3-oxo-4,5-dihydro-2H-6-pyridazinyl) benzimidazole;
Pimobendan;
UD-CG115 BS;
Pimobendam
- CAS No.：74150-27-9
- 分子式：
C19H18N4O2
- 分子量：334.37
- 精确分子量：334.14300
- PSA：79.37000
- InChI：InChI=1/C19H18N4O2/c1-11-9-16(22-23-19(11)24)13-5-8-15-17(10-13)21-18(20-15)12-3-6-14(25-2)7-4-12/h3-8,10-11H,9H2,1-2H3,(H,20,21)(H,23,24)/t11-/m1/s1
- 分子结构式：
物化性质
- 密度：
- 1.36
- 折射率：
- 1.692
- 稳定性相关：
安全信息
- 密度：
- 1.36
- 折射率：
- 1.692
- 稳定性相关：
毒理性
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- UR6373000
- CHEMICAL NAME :
- 3(2H)-Pyridazinone, 4,5-dihydro-6-(2-(4-methoxyphenyl)-1H-benzimidazol-5- yl)-5-methyl-
- CAS REGISTRY NUMBER :
- 74150-27-9
- LAST UPDATED :
- 199612
- DATA ITEMS CITED :
- 15
- MOLECULAR FORMULA :
- C19-H18-N4-O2
- MOLECULAR WEIGHT :
- 334.41
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 950 mg/kg
- TOXIC EFFECTS :
- Lungs, Thorax, or Respiration - other changes Endocrine - other changes
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,561,1992
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Subcutaneous
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- >300 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 25,815,1994
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 72 mg/kg
- TOXIC EFFECTS :
- Lungs, Thorax, or Respiration - acute pulmonary edema Gastrointestinal - other changes
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,561,1992
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- >2 gm/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,561,1992
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Primate - monkey
- DOSE/DURATION :
- >2 gm/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 25,815,1994 ** OTHER MULTIPLE DOSE TOXICITY DATA **
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 16800 mg/kg/4W-I
- TOXIC EFFECTS :
- Endocrine - changes in adrenal weight Blood - normocytic anemia Related to Chronic Data - death
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,561,1992
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 1911 mg/kg/39W-I
- TOXIC EFFECTS :
- Gastrointestinal - other changes
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,561,1992
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 18200 mg/kg/52W-I
- TOXIC EFFECTS :
- Gastrointestinal - other changes Blood - changes in other cell count (unspecified)
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,561,1992
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 56 mg/kg/4W-I
- TOXIC EFFECTS :
- Gastrointestinal - other changes
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,561,1992
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Mammal - dog
- DOSE/DURATION :
- 1400 mg/kg/4W-I
- TOXIC EFFECTS :
- Skin and Appendages - dermatitis, other (after systemic exposure)
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,561,1992
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Mammal - dog
- DOSE/DURATION :
- 56 mg/kg/4W-I
- TOXIC EFFECTS :
- Cardiac - pericarditis
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,561,1992
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Primate - monkey
- DOSE/DURATION :
- 27300 mg/kg/26W-C
- TOXIC EFFECTS :
- Cardiac - change in rate Cardiac - other changes
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 42,529,1991 ** REPRODUCTIVE DATA **
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- DOSE :
- 24 gm/kg
- SEX/DURATION :
- male 8 week(s) pre-mating female 2 week(s) pre-mating - 7 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea) Reproductive - Effects on Embryo or Fetus - fetal death
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,415,1992
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- DOSE :
- 390 mg/kg
- SEX/DURATION :
- female 17-21 day(s) after conception lactating female 21 day(s) post-birth
- TOXIC EFFECTS :
- Reproductive - Effects on Newborn - live birth index (measured after birth) Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,415,1992
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- DOSE :
- 1300 mg/kg
- SEX/DURATION :
- female 6-18 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea)
- REFERENCE :
- OYYAA2 Oyo Yakuri. Pharmacometrics. (Oyo Yakuri Kenkyukai, CPO Box 180, Sendai 980-91, Japan) V.1- 1967- Volume(issue)/page/year: 43,415,1992
分子结构与计算化学数据
分子结构数据
1、 摩尔折射率：94.00
2、 摩尔体积（cm3/mol）：245.2
3、 等张比容（90.2K）：657.6
4、 表面张力（dyne/cm）：51.7
5、 极化率（10-24cm3）：37.26
计算化学数据
1.疏水参数计算参考值（XlogP）:2.7
2.氢键供体数量:2
3.氢键受体数量:4
4.可旋转化学键数量:3
5.互变异构体数量:15
6.拓扑分子极性表面积79.4
7.重原子数量:25
8.表面电荷:0
9.复杂度:530
10.同位素原子数量:0
11.确定原子立构中心数量:0
12.不确定原子立构中心数量:1
13.确定化学键立构中心数量:0
14.不确定化学键立构中心数量:0
15.共价键单元数量:1
